Volume 12, Number 12—December 2006
Dispatch
West Nile Virus in Horses, sub-Saharan Africa
Olivier Cabre*
, Marc Grandadam†, Jean-Lou Marié‡, Patrick Gravier†, Aurélie Prangé†, Yan Santinelli§, Vincent Rous¶, Olivier Bourry#, Jean-Paul Durand†, Hugues J. Tolou†, and Bernard Davoust**
, Marc Grandadam†, Jean-Lou Marié‡, Patrick Gravier†, Aurélie Prangé†, Yan Santinelli§, Vincent Rous¶, Olivier Bourry#, Jean-Paul Durand†, Hugues J. Tolou†, and Bernard Davoust**
Table 1
West Nile virus antibody prevalence in horses in 6 African countries, December 2002–August 2005*
| Country (sampling sites) | Sampling date (no. riding stables) | No. tested | No. IgG+† | No. confirmed IgG+‡ | % Seroprevalence |
|---|---|---|---|---|---|
| Senegal (Dakar) | Dec 2002, Apr 2003 (1) | 25 | 23 | 23 | 92 |
| Côte d'Ivoire (Abidjan) | Dec 2003, Dec 2004, Jan 2005 (3) | 95 | 51 | 27 | 28 |
| Chad (N'Djamena) | Nov 2003, Oct 2004 (2) | 30 | 29 | 29 | 97 |
| DRC (Kinshasa) | Jul 2004 (1) | 20 | 9 | 6 | 30 |
| Gabon (Libreville, Port Gentil, Moanda) | Dec 2004 (4) | 64 | 9 | 2 | 3 |
| Djibouti (Djibouti) | Jul 2004, Aug 2005 (2) | 11 | 2 | 1 | 9 |
| Total | 245 | 123 | 88 | 36
*IgG+, positive for immunoglobulin G; DRC, Democratic Republic of the Congo. | |
*IgG+, positive for immunoglobulin G; DRC, Democratic Republic of the Congo.
†By ELISA.
‡By Western blot and seroneutralization for samples from 2002–2003, by Western blot only for samples from 2004 to 2005.
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